| ⇢ | B | tcl_findprd_centerscan() added | |
| ⇢ | A | tcl_findprd_safescan() added | |
| ⇢ | A | tcl_findprd_prepd_start() added | |
| ⇢ | A | tcl_findprd_safehandle() added | |
| ⇢ | A | tcl_findprd_prepd_middle() added | |
| ⇢ | A | tcl_findprd_prepd_end() added | |
| B | ↗ | A | tcl_findprd_checkfilter() improved |
| B | ↗ | A | tcl_findprd_prepdict() improved |
| C | ↗ | B | tclscan_main() improved |
| C | ↗ | A | tcl_findprd() improved |